The CMS Integration Grid Testbed
Gregory E. Graham, M. Anzar Afaq, Shafqat Aziz, L.A.T. Bauerdick,, Michael Ernst, Joseph Kaiser, Natalia Ratnikova, Hans Wenzel, Yujun Wu, Erik, Aslakson, Julian Bunn, Saima Iqbal, Iosif Legrand, Harvey Newman, Suresh, Singh, Conrad Steenberg, James Branson, Ian Fisk

TL;DR
This paper describes the development and operation of the CMS Integration Grid Testbed, a functioning distributed computing grid used for large-scale Monte Carlo event generation and data analysis in high-energy physics.
Contribution
It presents the design, implementation, and successful continuous operation of one of the world's first functional grid computing testbeds for scientific research.
Findings
Generated over 1 million CMS Monte Carlo events in two months
Demonstrated continuous, reliable grid operation for large-scale scientific computing
Integrated multiple tools and middleware for effective grid management
Abstract
The CMS Integration Grid Testbed (IGT) comprises USCMS Tier-1 and Tier-2 hardware at the following sites: the California Institute of Technology, Fermi National Accelerator Laboratory, the University of California at San Diego, and the University of Florida at Gainesville. The IGT runs jobs using the Globus Toolkit with a DAGMan and Condor-G front end. The virtual organization (VO) is managed using VO management scripts from the European Data Grid (EDG). Gridwide monitoring is accomplished using local tools such as Ganglia interfaced into the Globus Metadata Directory Service (MDS) and the agent based Mona Lisa. Domain specific software is packaged and installed using the Distrib ution After Release (DAR) tool of CMS, while middleware under the auspices of the Virtual Data Toolkit (VDT) is distributed using Pacman. During a continuo us two month span in Fall of 2002, over 1 million…
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Taxonomy
TopicsDistributed and Parallel Computing Systems · Advanced Data Storage Technologies · Scientific Computing and Data Management
